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klemol [59]
3 years ago
12

All four types of amino acids

Biology
2 answers:
worty [1.4K]3 years ago
8 0

 (1) non-polar and neutral, (2) polar and neutral, (3) acidic and polar, (4) basic and polar.

stealth61 [152]3 years ago
4 0

Answer:Non-Polar and Neutral, Polar and Neutral, Polar and Acidic, Polar and Basic

Explanation:

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True or false? One possible way to alter chromatin structure such that genes could be transcribed would be to make histone prote
Dmitrij [34]

Answer:

False

Explanation:

The histones that are more positively charged, tight hardly to negatively charged DNA. So, enzymes, such as acetyltransferases, that reduce the positive charge of histones promote transcription.

Chromatin structure and its modifications can change the package of the DNA and consequently, alter the gene expression. The most common modifications of the chromatin are covalent modifications such as acetylation/deacetylation (by acetyltransferases and eacetylases), methylation (by methyltransferases), and phosphorylation (by kinases).  This is the way of gene expression regulation.

The effects of modifications are different, for example methylation promotes  condensation of the chromatin and as a consequence, prevents binding of transcription factors to the DNA (transcription is repressed).

Acetylation loosens the association between nucleosomes and DNA (because it neutralizes the positive charge of histones) and consequently promotes transcription. Deacetylation is a process opposite to acetylation.

5 0
2 years ago
The all-or-none response means that
Delicious77 [7]

Answer:

option B) is correct

Explanation:

The all or none response means that if a muscle contracts, it will contract completely. Thus implying the all or none law which states:

The potential of a response of a muscle fiber or nerve cell is independent of the potential of the stimulus. If a stimulus is more than a certain critical value it will trigger muscle fiber or a nerve. Most importantly resulting in either an all-or-none response thus reducing possibility of any information loss.

3 0
3 years ago
Which of the following processes explains how a single gene could code for more than one protein
Rufina [12.5K]
<h2>Answer:</h2><h3 /><h3>Alternative splicing is a process that occurs during gene expression and allows for the production of multiple proteins (protein isoforms) from a single gene coding. ... For example, if a pre-mRNA has four exons (A, B, C, and D), these can be spliced and translated in a number of different combinations.</h3>
8 0
3 years ago
What is the average life span of juvenile upland game birds
gladu [14]

Answer:

90 percent

Explanation:

Based on average estimated juvenile and adult survival rate for each species

8 0
3 years ago
What can be predicted by regular patterns of the moon<br><br><br> PLS HELP ME
koban [17]

Answer:

its an illuminated

Explanation:

An easy way to remember and understand those "between" lunar phase names is by breaking out and defining 4 words: crescent, gibbous, waxing, and waning. The word crescent refers to the phases where the moon is less than half illuminated. The word gibbous refers to phases where the moon is more than half illuminated.

3 0
3 years ago
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